Milk-cooler.



PATENTES AUG. ifi, 1906.

K Bl Fx MILK COOLER.

PPLITIF FILED DBU. 3D, 1908.

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UNITED STATES 'PATENT orrron Specification of Letters Patent.

Patented nog. 14's tooo.`

Application filed December 30,1905, Serial New ill,

To all whom, t may concern.

Be it known that l, BENJAMIN F. CRAIG, a citizen of the United States, residing at Downingtown, in the county of Chester and State of Pennsylvania, have invented certain new and useful Im rovements in Milk-Coolers, of which the ollowing is a specification.

The present invention relates to an improved milk strainer and cooler; and it consists, essentially, of a strainin device and a cooling-pipe over which the milk is forced to iow, said coolin -pipe being so formed as to utilize to the ful est possible extent the heatabsorbing ower of the water passing therethrough. ll-Ieretoliore the princi al objection to this type of milk-cooling evices has been that they were unable to withstand the severe uses to which they were necessarily subjected and that it was very diiiicult to kerfplthem in a clean and sanitary condition.

e object of this invention has accordingly been to design and construct the various parts so as to Vrovide a rigid structure and one which at t e same time can be readily taken apart for cleaning urposes.

For a ull description o the invention and the merits thereof and also to acquire aV knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and accompanying drawings, in which- Figure 1 is a side elevation, portions being broken away; and Fig. 2 is a transverse seotionai view.

Corresponding and like parts are referred to in the following description and indicated in both the views of the drawings by the same reference characters.

The numeral 1 designates the outer casing, and 2 the cooling-pipe which is housed therein. This pipe 2 is bent back and forth upon itself to form a series of horizontal ortions which are in vertical alinement with each other and is provided at its lower end with an inlet-pipe 3 and at its upper end with an outletipe 4. These inlet and outlet pipes are pre erably detachably connected to the coolin -pipe 2, and when removed therefrom it wil be apparent that the cooling-pipe can be readilyr taken out of the casin 1 and thoroughl f' cleansed. In order to old the horizontaportions of the cooling-pipe 2 in a iixed osition, reinforcing members 5 may be provi ed, which are preferably formed by twisting two wires together. The u per edges of the casing 1 are bent outwardllr at 6 and form a seat upon which the upper or feeding trough 7 rests. This upper trough 7 is provided with two longitudinal series of o enings 8, which are so arranged as to feed t e milk upon both sides of the upper horizontal portion 'of the cooling-pipe 2. The lower end of the casing 1 is formed with a shoulder 9, which engages with the upturned edges 1Q of the openin in the cover 11 of the lower trough 12. This lower trough 12 is supported upon suitable standards 13 and is provided with e spout 14, which is so constructed that when one can has been lled the milk can be turned into an empty can without wasting e115T of it. A tank 15 is supported above the upper trough 7 and a spout i6 is connected thereto which is adapted to deliver the milk into the trough 7. This tank 15 is provided with two strainers l?, of fine cloth and with a third strainer 18, of absorbent cotton. lt will thus he apparentY that after the milk has passed through these strainers all the solid articles which were in sus ension will have een removed, and the mil will 'oe absolutely pure.

In the operation of the device the warm milk is turned into the tank l5 and after passing through the strainers therein and Veing freed from all impurities is delivered into the upper or feed trough 7. From thence it passes through the openings 8 and flows downward over the vertically-aimed horizontal portions of the cooling- 1pc 2. It is then collected in the lower troug 12 and delivered through the spout 14 into suitable receptacles. An essential feature of this invention resides in the fact that the water which is employed as a cooling medium is forced to flow upwardly through the pipe 2. ln this manner it will be apparent that the warm milk iirst comes into contact with those portions of the pipe containing water which has already a sorhed a certain amount of heat from the milk and which is therefore atv a higher temperature than when it first entered the coolingpipe. ,es the milk trickles downwardlux-T over the pipes it gradually comes into contact with colder sections of the cooling-pipe7 and in this Ina-nner the heat-absorbing power of the water or other cooling medium which might be employed is utilized to the fullest possible extent.

Havin thus described the invention, what is clainie es new s- 1. ln a milk-cooler, the combination ol a lower trough, a cover for the lower trough,

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said cover beingP provided with an o )ening the edges of w iieh are bent upwar ly, an outer easing the lower end of which fits removably within the opening in the eover, a shoulder upon the lower end of the easing which engages with the upturned edges of the opening in the cover, a cooling-pipe remova ly housed within the outer easlng and bent back and forth upon itself to form a series of approximately horizontal portions in vertical alinenient with each other, a seat at the upper end of the easing formed by bending the edges thereof outwardly, and an upper trough removably located upon said seat, Said upper trough being provided with a series of openings which are adapted to feed the milk upon both sides of the cooling-pipe.

2. ln a milk-cooler, the combination of a lower trough, a cover removably iitted upon the lower trough, said eover being provided with an opening, the edges of which are bent upwardly, an outer easing the lower end of which fits removably within the opening in the erover, a shoulder around the lower end of the outer easing which engages with the upturned edges of the opening in the eover, a cooling-pipe removably housed within the outer easing and bent back and forth upon itself to form` a .series of approximately horizontal seetiol'is in vertical alinement with eaeh other, a reinforcing-wire twisted around the horizontal seetions of the pipe to hold them in a 'fixed relation to each other, a seat at the upper end of the easing formed by bending the edges thereof outwardly, and an upper trough removably located upon the seat, said u per trough being provided with a series o openings which are adapted to feed the milk upon both sides of the cooling-pipe.

In testimony whereof I al'iix my signature in presence of two witnesses.

BENJAMIN F. CRAIG. 

